L4976D013TR

Voltage Regulators - DC DC Switching Regulators Overview

The L4976D013TR is a monolithic step-down switching regulator from STMicroelectronics, delivering up to 1A output current. It operates with an input voltage range of 8V to 55V and provides an adjustable output voltage between 0.5V and 50V. The device utilizes an internal power D-MOS transistor with a typical Rds(on) of 0.25Ω for high efficiency. It supports a switching frequency up to 300kHz and includes features such as pulse-by-pulse current limit, hiccup mode for short circuit protection, and thermal shutdown. The component is housed in a 16-SOIC (SO16W) surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates an internal power D-MOS transistor to achieve high efficiency and fast switching speeds
• Includes comprehensive protection mechanisms such as pulse-by-pulse current limiting and hiccup mode for short circuits
• Features voltage feedforward regulation and protection against feedback loop disconnection
• Supports zero load current operation and thermal shutdown for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• General-purpose DC-DC conversion systems requiring wide input voltage ranges
• Embedded power management solutions utilizing the SO16W surface-mount package
• Industrial or automotive applications needing robust short-circuit and thermal protection

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix D013TR corresponds to the 16-SO W (SO16W) plastic dual in line package variant intended for SMD assembly. Confirm that the ordering suffix does not alter the functional specifications unless explicitly stated in official documentation. Ensure compliance with RoHS3 standards and check moisture sensitivity level requirements during storage and handling procedures.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a buck converter topology is required with an input voltage up to 55V and an output capability of 1A. It is suitable for designs needing an adjustable output down to 0.5V. Consider the 16-pin SOIC package constraints and the need for external components to set the switching frequency and output voltage via an external divider.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L4976 series of step-down monolithic power switching regulators manufactured by STMicroelectronics. The series is realized in BCD mixed technology, designed to cover a majority of standard DC-DC conversion applications through its wide operating voltage ranges and integrated protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

L4978D013TR: Offers similar buck topology but with a higher 2A output current capability and fixed 3.3V to 50V output range.